PNSHAR PN-PWT Powder Whiteness Meter
The PNSHAR PN-PWT powder Whiteness Meter is used to measure the ISO whiteness (ISO Brightness, R457 whiteness) of powdery objects. For fluorescent whitening samples, it can also measure the fluorescence whiteness generated by the reflection of fluorescent substances.
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This instrument is used to determine the ISO brightness (R457 whiteness) of powdery objects, and can also measure the fluorescence whiteness produced by the reflection of fluorescent substances on the fluorescent whitening sample. It is widely used in kaolin, calcium carbonate, talc, barite, activated clay, barium sulfate, magnesium oxide, flour, cement and other powder samples. Paper, paper products, paper industry, textile, printing and dyeing, plastics, ceramics, enamel, building materials, paints, chemicals, grain, salt, sugar and other production and commodity inspection departments that need to determine whiteness.
Features
1. The appearance of this instrument is novel and compact, and the professional circuit design effectively ensures the accuracy and stability of the measurement data.
2. The instrument has power-off protection, and the calibration data will not be lost after power-off.
3. This instrument is equipped with standard RS232 interface, which can be used for communication with microcomputer software.
4. Simulate D65 illuminator lighting. The CIE 1964 supplemental chromaticity system and the CIE 1976 (L*a*b*) color space chromatic aberration formula were used
5. Use D/O illumination to observe the geometric conditions. The diameter of the diffuser ball is φ150mm, the diameter of the test hole is φ30mm, and the light absorber is provided to eliminate the influence of speciar reflection light.
6. The results can be measured multiple times for statistics and the arithmetic mean value can be obtained.
Enforce the standard
GB/T 19281 、 GB/T 23774
PNshar PN-PWT Powder Whiteness MeterSpecifications
| LIST | VALUE |
|---|---|
| Power Supply | AC 110/220V 2A 50Hz |
| Precision | △R457≤0.5、△Y≤1.0 |
| Resolution | 0.1 |
| Measurement range | 1~160% |
| integrating sphere | < unk > 150mm, test hole < unk > 30mm, simulated D65 lighting body lighting |
| Specimen size | Test plane ≥ 0019 30mm, thickness ≤ 40mm |
| Display mode | 128 × 64 dot matrix LCD screen (Chinese and English menu)/6-bit LED digital tube display (optional) |
| Operating Environment | Indoor temperature (20 +/- 10) ℃ Relative Humidity < 85% |
| Dimensions | 370*260*430mm |
| Weight | About 11.5kg |
PNshar PN-PWT Powder Whiteness Meter Packing list
machine X1, manual X1, certificate X1, warranty card X1
[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.
FAQ
- How can the paper industry achieve greater whiteness?
- What are whiteness and yellowness?
- How to measure Paper transparency and glossiness?
- Paper performance: whiteness (brightness)
- Does the Whiteness Meter have detection significance on white rice?
- Instrument and method for measuring whiteness of paper
- ActiveJJF 512-2021
- ActiveGB/T 22427.6-2008
- ActiveJJG (轻工)48-2000
- ActiveJJG (轻工)48-2000
- ActiveJJG 512-2002
- ActiveGB/T 10339-2018
- AbolishGB/T 13176.1-1991
- ActiveGB/T 8940.2-2002
- ActiveGB/T 7974-2013
- ActiveGB/T 5950-2008
- ActiveGB/T 23979.2-2009
- ASTM 313-2020
- ActiveJC/T 423-1991


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